Robert Koch received the 1905 Nobel Prize in Physiology or Medicine for
A) developing a smallpox vaccination.
B) identifying Mycobacterium tuberculosis as the causative agent of tuberculosis.
C) making an effective rabies vaccine.
D) developing a smallpox vaccination, identifying Mycobacterium tuberculosis as the causative agent of tuberculosis, and making an effective rabies vaccine.
Answer: B
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Muscle groups that produce similar motion, or work synergistically, are known as:
A. agonists. B. antagonists. C. synergists. D. pro-agonists.
During which phases of mitosis are chromosomes composed of two sister chromatids?
a. prophase only b. prophase and metaphase c. prophase and anaphase d. anaphase and telophase e. chromosomes are composed of two sister chromatids during all phases of mitosis
If you wanted to cause the extinction of an entire phylum, you would need to kill every cycad.
Indicate whether the statement is true or false.
Which of the following is FALSE?
A. Multicellularity allows organisms to become larger than physiologically possible for a single cell B. A cell can grow infinitely large as long as there is adequate nutrition in its extracellular environment C. In a multicellular organism, all cells must be exposed to either the environment or a circulatory system D. Adaptations that increase surface area, such as invagiations or flattened cell shape, allow cells to become larger E. Development and cell specialization is a consequence of multicellularity F. All of these are true G. All of these are false